Interested to Buy Any Domain ? << Click Here >> for more details...
I am an electrical power engineer and arranged power system
for a data center, I installed MCB, ELCB and erthing system
TN-C-S.
But some times several ELCBs Disconnect circuits at the
same time! what may be the reason? (the ELCBs are 25A ,30mA)
- 9 Answers
- 13403 Views
- I also Faced
- E-Mail Answers
Answer Posted / prashant
that means tgat u wer using those 30 mA ELCB to feed ur ac/
power sockets or some other heavier load
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.
how we calculate the dick for a pole?
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?
How the annunciator works ? How to do its wiring
at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformerÂ
Classify milling machines.
diff. between tension mode & speed mode
how to calculate micom relay earth falt time and current sertting
Explain the advantages and disadvantages of hydropower plant?
During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative
Difference between HRG and NGR. Are they both the same thing
What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?
